Suspension
The suspension consisted of front drive sprockets, rear idlers and eight double-interleaved rubber-rimmed steel road wheels on each side, suspended on a dual torsion bar suspension. The dual torsion bar system, designed by Professor Ernst Lehr, allowed for a wide travel stroke and rapid oscillations with high reliability, thus allowing for relatively high speed travel by this heavy tank over undulating terrain. However, the extra space required for the bars running across the length of the bottom of the hull, below the turret basket, increased the overall height of the tank and also prevented an escape hatch in the hull bottom. When damaged by mines, the torsion bars often required a welding torch for removal.
The Panther's suspension was complicated to manufacture and the interleaved system made replacing inner road wheels time consuming (though it could operate with multiple missing or broken wheels). The interleaved wheels also had a tendency to become clogged with mud, rocks and ice, and could freeze solid overnight in the harsh winter weather of the Eastern Front. Shell damage could also cause the road wheels to jam together and become extremely difficult to separate. Interleaved wheels had long been standard on all German half-tracks. The extra wheels did provide better flotation and stability, and also provided more armor protection for the thin hull sides than smaller wheels or non-interleaved wheel systems, but the complexity meant that no other country ever adopted this design for their tanks. In September 1944, and again in March/April 1945, M.A.N. built a limited number of Panther tanks with overlapping, non-interleaved steel roadwheels originally designed for the Tiger II and late series Tiger I tanks. Steel roadwheels were introduced from chassis number 121052 due to raw material constraints.
From November 1944 through February 1945, a conversion process began to use sleeve bearings in the Panther tank, as there was a shortage of ball bearings. The sleeve bearings were primarily used in the running gear; plans were made also to convert the transmission to sleeve bearings, but were not carried out as production of Panther tanks came to an end.
Read more about this topic: Panzer V Panther, Design Characteristics
Famous quotes containing the word suspension:
“That willing suspension of disbelief for the moment, which constitutes poetic faith.”
—Samuel Taylor Coleridge (1772–1834)
“If the oarsmen of a fast-moving ship suddenly cease to row, the suspension of the driving force of the oars doesn’t prevent the vessel from continuing to move on its course. And with a speech it is much the same. After he has finished reciting the document, the speaker will still be able to maintain the same tone without a break, borrowing its momentum and impulse from the passage he has just read out.”
—Marcus Tullius Cicero (106–43 B.C)
“There are two kinds of liberalism. A liberalism which is always, subterraneously authoritative and paternalistic, on the side of one’s good conscience. And then there is a liberalism which is more ethical than political; one would have to find another name for this. Something like a profound suspension of judgment.”
—Roland Barthes (1915–1980)